What is the series of events that cells go through as they grow and divide ?

In a cladogram' when does a group of organisms branch off

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.